In summary, I would say that are a number of things to improve. In particular, there seems to be no reliable way to eliminate or monitor the chemical pollution which would be present in the sewage that they want to recycle back to people's faucets. They also did not discuss these chemicals in much depth, lumping them under the category of 'Constituents of Emerging Concern (CECs)'. These would include pharmaceuticals, recreational drugs, cleaning products, disinfectants, and disinfection by-products.

With the current drought, California is facing serious water shortages. Hopefully we can help them find more sustainable and healthful solutions than Toilet-to-Tap. It would be excellent for economic incentives to be put in place to encourage individuals, apartment complexes, communities and municipalities to install UDDTs, Closed-loop Flushwater Recycling, and other sustainable technologies.

Are there any Forum members based at universities in California? It would be spectacular to demonstrate, research, fine-tune, and spread the word about these technologies there.